VDB-189466 · CVE-2021-20133 · GCVE-0-2021-20133

D-Link DIR-2640 1.11B02 Quagga Service path traversal

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.2	$5k-$25k	0.00

Summaryinfo

A vulnerability was found in D-Link DIR-2640 1.11B02 and classified as critical. This affects an unknown part of the component Quagga Service. Executing a manipulation can lead to path traversal. This vulnerability is handled as CVE-2021-20133. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in D-Link DIR-2640 1.11B02 (Router Operating System). It has been declared as critical. This vulnerability affects an unknown code of the component Quagga Service. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality.

The weakness was released 12/31/2021. The advisory is available at tenable.com. This vulnerability was named CVE-2021-20133 since 12/17/2020. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 12/31/2021). This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Router Operating System

Vendor

D-Link

Name

DIR-2640

Version

1.11B02

License

commercial

Website

Vendor: https://www.dlink.com/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/17/2020 🔍
12/31/2021 +379 days 🔍
12/31/2021 +0 days 🔍
01/05/2022 +5 days 🔍

Sourcesinfo

Vendor: dlink.com

Advisory: tenable.com
Status: Not defined

CVE: CVE-2021-20133 (🔍)
GCVE (CVE): GCVE-0-2021-20133
GCVE (VulDB): GCVE-100-189466

Entryinfo

Created: 12/31/2021 08:00
Updated: 01/05/2022 08:20
Changes: 12/31/2021 08:00 (38), 01/05/2022 08:20 (1)
Complete: 🔍
Cache ID: 216::103